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'''Polymicrotonality''' is the use of multiple tuning systems in the same piece.<ref>[https://stereosociety.com/polymicrotonally/ Johnny Reinhard essay on his polymicrotonal experiences]</ref> [[Ivor Darreg]] also calls this '''polysystemic'''. <ref>[http://www.tonalsoft.com/sonic-arts/darreg/dar27.htm Ivor Darreg, ''Defining One's Terms'', June 1988]</ref>
'''Polymicrotonality''' is the use of multiple tuning systems in the same piece.<ref>[https://stereosociety.com/polymicrotonally/ Johnny Reinhard essay on his polymicrotonal experiences]</ref> [[Ivor Darreg]] also calls this '''polysystemic'''. <ref>[http://www.tonalsoft.com/sonic-arts/darreg/dar27.htm Ivor Darreg, ''Defining One's Terms'', June 1988]</ref>
== Techniques ==
== Techniques ==
With equal divisions of the octave (or any other interval) tuning systems, polymicrotonality is achieved via the equal division which is the least common multiple of the two (or more) systems being played. [[Highly composite edo]]s are rich sources of polysystemicism as they have more divisors than any number before them, and thus provide strong opportunities of using multiple systems in one piece.
With [[equal divisions of the octave]] (or any other interval) tuning systems, polymicrotonality is achieved via the equal division which is the least common multiple of the two (or more) systems being played. [[Highly composite edo]]s are rich sources of polysystemicism as they have more divisors than any number before them, and thus provide strong opportunities of using multiple systems in one piece.


== Compositions ==
== Music ==
; [[Ambient Esoterica]]
* [https://m.youtube.com/watch?v=X-Dk_63d9EY ''Poly Temperament Microtonality | 19edo + 29edo + 39edo''] (2023)
* [https://www.youtube.com/watch?v=_Oykgk0uOZI ''Polymicrotonality ECHO-Pluck | 7edo + 72edo | Ars Goetia''] (2024)
* [https://www.youtube.com/watch?v=8FcIBreEtOU ''Thoth AstroTarot Wheel of the Year''] (2025) – 12edo, 4edo, 10edo and 7edo


[http://micro.soonlabel.com/simultaneous-tunings/daily20100502-pythag17and12tet.mp3 In Search of Perfect Consonance] Roland GR-20 re-tuned to Arabic 17 note Pythagorean tuning and electric guitar in 12 equal by [http://www.chrisvaisvil.com Chris Vaisvil] =&gt; [http://chrisvaisvil.com/?p=139 performance details]
; [[Amelia Huff]] / [[Zhea Erose]]
* [https://www.youtube.com/watch?v=7RLwlGpyHz0 Prayer Room] [[31edo]] - [[12edo]] - [[Just intonation|JI]] (2019)


[http://micro.soonlabel.com/simultaneous-tunings/daily20110916_santabarbra_shipwreck_diving-12edo-19edo.mp3 Santa Barbara Shipwreck] 19 edo guitar with 12 edo synthesizer [http://chrisvaisvil.com/?p=1685 by Paul H. Muller and Chris Vaisvil]
; [[Bryan Deister]]
* "In The Dark" from ''The Dying Saviour'' (2019) – [https://open.spotify.com/track/38HsURNmU6eKXvk69pnqg0 Spotify] | [https://bryandeister.bandcamp.com/track/in-the-dark Bandcamp] | [https://www.youtube.com/watch?v=FrWONIPAv_E YouTube] – 23edo, 22edo, 21edo, 20edo, 19edo and 18edo


'''[http://micro.soonlabel.com/17-ET/daily20110318-seventeen-years-in-the-sixties.mp3 Seventeen Years in the Sixties] - 17 edo guitar, 12 edo 5 string bass &amp; drums by [http://www.chrisvaisvil.com Chris Vaisvil] =&gt; [http://chrisvaisvil.com/?p=585 Details]'''
; [[Chris Vaisvil]] ([http://www.chrisvaisvil.com site])
* [http://chrisvaisvil.com/?p=1730 Tuning Survey from July 21 2010]
** [http://micro.soonlabel.com/simultaneous-tunings/Bill_Bremmer_ShiningBrow_and12edo.mp3 ''The Mouth Opens to Speak''] – Bill Bremmer Shining Brow tuning and 12edo
** [http://micro.soonlabel.com/simultaneous-tunings/12edo_andBoethiussChromaticTheCIis19by16.mp3 ''The Lumma Cryptic''] – Boethiuss Chromatic
** [http://micro.soonlabel.com/simultaneous-tunings/Graham%20Breed_blues_scale_in22-tETplus12edo.mp3 ''immoderate moderations''] – Gramham Breed blues scale in 22edo plus 12edo
** [http://micro.soonlabel.com/simultaneous-tunings/daily20100528-12tet-and17-limit-quasi-meantone-in-a-major.mp3 ''untitled 1''] – 12edo and 17-limit quasi-meantone in A major
* ''In Search of Perfect Consonance'' (2010) – [http://micro.soonlabel.com/simultaneous-tunings/daily20100502-pythag17and12tet.mp3 play] | [https://chrisvaisvil.com/in-search-of-perfect-consonance/ blog] – Roland GR-20 re-tuned to Arabic 17-note Pythagorean tuning and electric guitar in 12 equal
* ''Seventeen Years in the Sixties'' (2011) – [http://micro.soonlabel.com/17-ET/daily20110318-seventeen-years-in-the-sixties.mp3 play] | [https://chrisvaisvil.com/seventeen-years-in-the-sixties/ blog] – 17edo guitar, 12edo 5-string bass &amp; drums


[http://chrisvaisvil.com/?p=1730 The following from a tuning survey by Chris Vaisvil]
; Chris Vaisvil and [[Paul H. Muller]]
* ''Santa Barbara Shipwreck'' (2011) – [http://micro.soonlabel.com/simultaneous-tunings/daily20110916_santabarbra_shipwreck_diving-12edo-19edo.mp3 play] | [https://chrisvaisvil.com/santabarbara-chipwreck/ blog] – 19edo guitar with 12edo synthesizer


[http://micro.soonlabel.com/simultaneous-tunings/Bill_Bremmer_ShiningBrow_and12edo.mp3 The Mouth Opens to Speak] Bill Bremmer Shining Brow tuning and 12 edo&lt;br&gt;
; [[Carlo Serafini]]
* ''Venusian Wedding Band'' (2014) – [http://www.seraph.it/dep/det/VenusianWeddingBand.mp3 play] | [http://www.seraph.it/blog_files/163171a0fc06728cd9a61d31eea492ef-190.html blog]


[http://micro.soonlabel.com/simultaneous-tunings/12edo_andBoethiussChromaticTheCIis19by16.mp3 The Lumma Cryptic] Boethiuss Chromatic &lt;br&gt;
; Most music by [[James Wyness]]
 
[http://micro.soonlabel.com/simultaneous-tunings/Graham%20Breed_blues_scale_in22-tETplus12edo.mp3 immoderate moderations] Gramham Breed blues scale in 22 edo plus 12 edo&lt;br&gt;
 
[http://micro.soonlabel.com/simultaneous-tunings/daily20100528-12tet-and17-limit-quasi-meantone-in-a-major.mp3 untitled 1] <span style="">12 edo and 17-limit quasi meantone in a major</span>&lt;br&gt;
 
[http://www.seraph.it/dep/det/VenusianWeddingBand.mp3 Venusian Wedding Band] by [[Carlo_Serafini|Carlo Serafini]] ([http://www.seraph.it/blog_files/163171a0fc06728cd9a61d31eea492ef-190.html blog entry])


== References ==
== References ==
<references/>
<references/>
[[Category:Terms]]
[[Category:Terms]]
[[Category:Listen]]
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